Finding the Fourth Proportional to 5,758.71, 8,623.88 and 3,672.55

Step by Step Solution

1. Step 1: Write the proportion equation
   5,758.71 : 8,623.88 = 3,672.55 : x
2. Step 2: Convert to fraction form
   5,758.71/8,623.88 = 3,672.55/x
3. Step 3: Cross multiply
   5,758.71x = 8,623.88 × 3,672.55
4. Step 4: Simplify right side
   5,758.71x = 31,671,630.49
5. Step 5: Solve for x
   x = 31,671,630.49/5,758.71
6. Step 6: Final answer
   x = 5,499.78